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Builds

The scraper can be built with either Oracle's godror driver or the no-CGO go-ora driver.

Default Build​

The default build uses godror.

go build -o oracledb_performance_scraper ./

Use this build when Oracle Instant Client is installed and configured on the machine that runs the scraper.

No-CGO Build​

Build with go-ora using the goora tag:

go build -tags goora -o oracledb_performance_scraper ./

Use this build when you want a simpler binary deployment without Oracle Instant Client.

Container Build​

The Dockerfile uses Oracle Linux 8 slim as the base image. It has a reusable build-deps stage and runtime stages for godror and goora.

Build the dependency image:

docker build \
  -f Dockerfile \
  --target build-deps \
  --build-arg GOOS=linux \
  --build-arg GOARCH=amd64 \
  --build-arg TAGS=godror \
  --build-arg CGO_ENABLED=1 \
  --build-arg GO_VERSION=1.26.3 \
  -t oracledb-performance-scraper-build-deps:local \
  .

Build the scraper image through Compose:

docker compose --env-file .env -f docker-compose/compose.yaml build dbscraper

The Compose build creates:

oracledb-performance-scraper:local

Extracting The Binary From An Image​

From a running container:

docker cp <container_name>:/oracledb_performance_scraper ./oracledb_performance_scraper
chmod +x ./oracledb_performance_scraper

From an image without keeping a container:

docker create --name tmp_oracledb_performance_scraper oracledb-performance-scraper:local
docker cp tmp_oracledb_performance_scraper:/oracledb_performance_scraper ./oracledb_performance_scraper
docker rm tmp_oracledb_performance_scraper
chmod +x ./oracledb_performance_scraper

The same pattern works with podman cp.